justices will also hear a related case concerning the defense of marriage act. kron 4 sedan kerman takes a look at what this all means. >> the u.s. supreme court decision. the initial challenge to proposition 8 was filed on behalf of two gay couples. when voters passed proposition 8 in 2008, when bay area couple filed a lawsuit, saying that the ban was unconstitutional and discriminatory. today they remain on the front line, saying that they want to continue to fight for equality. >> they see that this is a historic moment and this will allow them to decide every possible question. >> little says that chief justice could be pivotal in the decision. >> chief justice's tend to look at history. he prove this last term in the health-care issue. he will go down in history their i. he l see this as a similar issue. the cultural ties seems to have turned carry it they're not immune. >> the supreme court will take the proposition back- to-back. we will look for a decision sometime before next june. >> this is very important and this is not just for us but for kids and f